The conservation status of a group of organisms indicates whether the group still exists and how likely the group is to become extinct in the near future. Many factors are taken into account when assessing conservation status: not simply the number of individuals remaining, but the overall increase or decrease in the population over time, breeding success rates, and known threats. Various systems of conservation status exist and are in use at international, multi-country, national and local levels as well as for consumer use.
Cupressus guadalupensis, the Guadalupe cypress, is a species of cypress from Guadalupe Island in the Pacific Ocean off western North America.
An IUCN Red List Critically Endangered species is one that has been categorized by the International Union for Conservation of Nature as facing an extremely high risk of extinction in the wild. As of 2021, of the 120,372 species currently tracked by the IUCN, there are 8,404 species that are considered to be Critically Endangered.
Notiosorex cockrumi, also called Cockrum's gray shrew or Cockrum's desert shrew, is a tiny species of shrews named in 2003. This red-toothed shrew, which is as light as a penny, is the first new mammal species from Arizona since 1977. Its range extends from Arizona to central Sonora, Mexico.
Greigia is a genus of plants in the family Bromeliaceae, subfamily Bromelioideae. It is native to Latin America from Mexico to Chile. The genus is named in honour of Major General Samuel Alexjewitsch Greig, president of the Russian Horticultural Society in 1865.
A species that is extinct in the wild (EW) is one that has been categorized by the International Union for Conservation of Nature as known only by living members kept in captivity or as a naturalized population outside its historic range due to massive habitat loss.
Idiopappus saloyensis is a species of flowering plant in the genus Idiopappus, in the family Asteraceae. It is found only in Ecuador, where its natural habitat is subtropical or tropical high-altitude grassland. It is threatened by habitat loss.
Juania australis, the Chonta palm, is a species of flowering plant in the family Arecaceae, the only species in the genus Juania. It is a solitary trunked palm tree which is endemic to the Juan Fernández Islands archipelago in the southeast Pacific Ocean west of Chile.
Pelagodoxa henryana is a species of palm tree, and the only species in the genus Pelagodoxa. It is found only in the Marquesas Islands of French Polynesia, where it is threatened by habitat loss.
Verschaffeltia splendida is a species of flowering plant in the family Arecaceae. It is the only species in the genus Verschaffeltia.
Aquilaria malaccensis is a species of plant in the Thymelaeaceae family. It is found in Bangladesh, Bhutan, India, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Singapore, and Thailand. It is threatened by habitat loss.
Austroblechnum divergens, synonyms including Blechnum divergens, Blechnum rimbachii and Blechnum floresii, is a species of fern in the family Blechnaceae.
Greigia sodiroana is a species of plant in the family Bromeliaceae. It is endemic to Ecuador. Its natural habitats are subtropical or tropical moist montane forests and subtropical or tropical high-altitude shrubland. It is threatened by habitat loss.
Melicope haupuensis is a species of tree in the family Rutaceae known by the common names Haupa Mountain melicope and Pacific pelea. It is endemic to the Hawaiian Islands, where it is known only from the island of Kauai. It is threatened by habitat loss. It is a federally listed endangered species of the United States. Like other Hawaiian Melicope, this species is known as alani.
Ocotea porosa is a species of plant in the Lauraceae, often placed in the related genus Phoebe. It is commonly called imbuia or Brazilian walnut because its wood resembles that of some walnuts. The tree is a major commercial timber species in Brazil, used for high-end furniture, mostly as decorative veneers, and as flooring. The wood is very hard, measuring 3,684 lbf on the Janka scale. The wood is also fragrant with hints of nutmeg and cinnamon. The tree is also a popular horticultural tree in subtropical regions of the world. In its native habitat it is a threatened species.
Greigia ocellata is a plant species in the genus Greigia. It is also perennial.
Greigia vulcanica is a species of flowering plant in the Bromeliaceae family. It is native to Colombia and Ecuador.
Cyanea copelandii is a rare species of flowering plant in the bellflower family known by the common name treetrunk cyanea. It is endemic to Maui, where there are no more than 250 individuals remaining in the wild. It is a federally listed endangered species of the United States. Like other Cyanea it is known as hāhā in Hawaiian.
Cyanea eleeleensis was a rare species of flowering plant in the bellflower family known by the common name Eleele cyanea. It was endemic to Kauai, where it has been declared extinct. It was federally listed as a critically endangered species of the United States in 2010. Like other Cyanea it is known as haha in Hawaiian.
Cyanea hamatiflora is a rare species of flowering plant in the bellflower family known by the common name wetforest cyanea. It is endemic to Hawaii, where it is known from the islands of Maui and Hawaii, and there are probably fewer than 250 plants remaining in total. It is a federally listed endangered species. Like other Cyanea it is known as haha in Hawaiian.
